- The basic primary heart disease is coronary heart disease ( with diagnosis for coronary heart disease : confirmed by coronary angiography; confirmed by coronary CT; history of acute myocardial infarction; limb-salvage Q wave for ECG; ecg ECG test and radionuclide examination support, etc.); no history of hypertension or taking antihypertensive drugs, with blood pressure under 160/100 mmHg.